This morning, the John D. and Catherine T. MacArthur Foundation announced this year's class of MacArthur Fellows — recipients of so-called "genius awards."

The 23 beneficiaries — including a physics teacher, a stone carver, a population geneticist, and a biomedical animator — were "selected for their creativity, originality, and potential to make important contributions to the future."

Over the next five years, each fellow will receive a "no strings attached" stipend of $500,000.

In an interview with Block, Carter said that, despite his prolificness — he estimates he has designed somewhere around 60 font families — there is no signature Carter font:

There are type designers who, you can recognize their style anywhere. Their sort of personality comes burning through everything they do. But I think I'm more of a chameleon, and I think that the work I've done has been very varied, which I suppose has kept my interest in it.

The son of a historian of typography, Cater apprenticed in the Netherlands, started his career in England, and settled in Cambridge, Mass.

At 72, as someone who has worked on projects for others — Microsoft, Yale University and The New York Times, he said he looks forward to doing more "self-directed or self-initiated work."

According to the MacArthur Foundation, Benoit-Bird, an associate professor of biological oceanography at Oregon State University, "uses sophisticated acoustic engineering techniques to explore the previously invisible behavior of ocean creatures at scales ranging from swarms distributed over many cubic kilometers to individual predators."

She told Block that, because "lots of exciting interactions in the ocean actually happen at night," she often works late, studying a wide range of aquatic life — from zooplankton to whales.

Benoit-Bird fell in love with oceans when she was in fourth grade. At Brown University, then at the University of Hawaii, she used sound to study marine life. In graduate school, her research interests crystallized.

Most people probably are unfamiliar with Jessie Little Doe Baird, an indigenous language preservationist, or Nergis Mavalvala, a quantum astrophysicist, but Simon — the creator of Homicide: Life on the Street, The Wire, and Treme — is a household name.

He told Siegel that, while the honor is "a very good thing for me in terms of the currency of the work, in trying to convince television networks to be more aggressive in terms of stories that have social, political or economic relevance," he can't help but feel like he doesn't really deserve it:

I'm looking down at people who are really in the tangible professions, and I'm thinking, storyteller is a nice way to spend your life, and it has meaning, and I'm not suggesting that I feel as if it's a waste of time, but it does feel a little bit second tier, if you will.

Simon said he may give some of the money to charities, adding that it could also help him pay writers and researchers on new projects. At the very least, he said, it has provided his wife, novelist Laura Lippman, with "five years of new material."